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(No Model.)

P. B. KEARNEY.

TONGUING AND GROOVING MAGHINE.

Patented Feb. 24, 1885.

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UNITED STATES PATENT Orrice.

FRANK B. KEARNEY, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR OF ON E-HALF TO DAVID E. SPENCER AND GERSHOM POWERS, OF SAME PLACE.

TONGUING AND GROOVING MACHINE.

SPECIFICATION forming part of Letters Patent No. 313,000, dated February 24, 1885.

Application filed May 24, 1884.

To (ZZZ whom it may concern:

Be it known that I, FRANK B. KEARNEY, of the city of Grand Rapids, county of Kent, and State of Michigan, have invented a new and useful Improvement in Grooving and Tonguing Machines, of which'the following is a specification, reference being had to the accompanying drawings.

My invention relates to the construction of a machine designed to seize, secure, and hold pieces of wood whichv are to be tongued and grooved for the purpose of joining them to gether, like flooring and matched table-tops, and when so secured and held to guide them firmly and evenly along a saw-table, to be subjected to the action of the saws, which project slightly above the top of the saw-table, the tonguing and grooving being done by the action of said saws,constructed, set, and adapt- Referring to the drawings, Figure 1 is a plan view of my invention. Fig. 2 is an end view of the same opened, and showing the sawtable in section. Fig. 3 is also an end view closed, without the table.

Similar letters of reference refer to corresponding parts throughout the several figures;

A A represent two compression-rods, to which the springs e e e e are attached.

B B represent curved connecting-rods joining rods A A with wheel D, Figs. 2 and 3. (These rods are represented by B B upon the right of Fig. 1, and by L L upon the left of same figure.)

5 G is a lever that turns shaft D.

D represents a central longitudinal shaft. (Shown in Fig. 1 by dotted lines, the end only being shown in Figs. 2 and 3.)

E is a dovetailed track which rests upon saw-table top, and engages with the longitudinal groove in the bottom of main guide-block M, Figs. 2 and 8. (This track may be double, if desired, and when double only one need be dovetailed.)

F indicates feed-screw. (This screw may be dispensed with a'ndthe device guided by hand, if desired.)

Gr indicates saw-table; N N, saws in posi- (No model.)

tion; K, saw-shaft, and H H wheels or disks rigidly secured to the ends of shaft D.

I I and J J indicate guide-rods rigidly secured to main guide -block M and passing through A A loosely; M, the main guide-block resting upon track E, and to which boards d d are rigidly pressed by springs e e c 6; it a, nuts fastening the connecting rods to the compressionrods; c c c o, grooved portion of springs e e e e, by which they are det-achably secured to rods A A by set-screws, as shown in Fig. 1; d d, pieces of board in position to be grooved; e e e e, springs.

The method of operating my device is as follows: Being placed upon the track E, (which has been firmly secured upon the top of the saw-table and laid perfectly straight and level,) the grooved bottom engaging with the dovetailed top of track E, the lever 0 being laid horizontally, as shown in Fig. 2, rods B B L L will push rods A A outward from block M. When the parts are in this position, I say the machine is open. The boards d d to be grooved'are then placed in position, as shown in Fig. 1. The lever Ois then raised perpendicularly, as shown in Fig. 2. The revolution of the shaft D, carrying the wheels H H, causes the rods-B B L L to draw in upon the rods A A, carrying the springs e e e e, which press against boards d d, pressing them firmly against main guide-block M, and holding them firmly, rigidly, and securely in that position. The device is then pushed forward along the track (either by hand or screw power, as hereinbefore stated, or other suitable means) until it has passed over the saws,by the action of which the lower edges of d d will be tongued and grooved, as shown in Fig. 2. The position of the pieces (1 d being then transposed, their other edges may be similarly treated by the backward movement of the machine.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- 1. The combination, with the main guideblock forming a support for the boards to be tongued and grooved, of the longitudinal shaft 9 5 passing through said block, the wheels attached to the ends of said shaft, the connecting-rods, and the compression-rods provided with springs adapted to bear against the boards and press them against the sides of the main guide-block, substantially as specified.

2, The combination, with the mainguideblock, of the shaft passing longitudinally through the same, the wheels attached to the ends of the shaft, the operating-lever secured to one of the wheels, the curved connectingrods pivotedto said wheels, the compressionrods and their guide-rods, and the clampingsprings, all arranged to operate substantially as specified.

3. lhe combination ofthe main guide-block, against which the boards are clamped, the shaft extending longitudinally through said I block, the wheels secured to the ends of said shaft, the curved rods connecting the compression-rods with said wheels, the springs secured to said compression-rods and adapted to bear against the boards, and the dovetailed FRANK B. KEARN Y.

Witnesses:

DENNIs L. ROGERS, FRANK S. DONALDSON.

track on which the main block travels, the 

